Sodium polonide
Crystal structure of sodium polonide __ Na+ __ Po2− | |
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Preferred IUPAC name Sodium polonide | |
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3D model (JSmol) |
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InChI
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Properties | |
Chemical formula | Na2Po |
Molar mass | 254.96 g/mol |
Appearance | greyish[1] |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Sodium polonide is a radioactive chemical compound with the formula Na2Po. This salt is a polonide, a set of very chemically stable compounds of polonium.[2][3] Due to the difference in electronegativity (ΔEN) between sodium and polonium (≈ 1.1 under the Pauling system) and the slight non-metallic character of polonium, it is intermediate between intermetallic phases and ionic compounds.
Production
This salt may be produced from the reaction between aqueous polonium hydride and sodium metal:[2][3]
- H2Po + 2 Na → Na2Po + H2
This method of synthesis is hampered by the chemical instability of hydrogen polonide.
Sodium polonide may also be produced by heating sodium and polonium together at 300–400 °C.[1]
Crystal structure
Like lithium polonide and potassium polonide, sodium polonide has the antifluorite structure.[2][3]
References
- ^ a b Bagnall, K. W. (1962). "The Chemistry of Polonium". Advances in Inorganic Chemistry and Radiochemistry. New York: Academic Press. pp. 197–230. ISBN 9780120236046. Retrieved June 17, 2012.
- ^ a b c Greenwood, Norman N.; Earnshaw, Alan (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 899. ISBN 978-0-08-022057-4.
- ^ a b c Moyer, Harvey V. (1956), "Chemical Properties of Polonium", in Moyer, Harvey V. (ed.), Polonium, Oak Ridge, Tenn.: United States Atomic Energy Commission, pp. 33–96, doi:10.2172/4367751, TID-5221.
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Halides | |
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Chalcogenides | |
Pnictogenides |
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Oxyhalides | |
Oxychalcogenides |
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Oxypnictogenides |
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Others |
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- CH3ONa
- C2H5ONa
- HCOONa
- C2H5COONa
- C3H7COONa
- Na2C4H4O6
- C4H5NaO6
- NaCH3COO
- NaC6H5CO2
- NaC6H4(OH)CO2
- NaC12H23O2
- NaC10H8
- Na2[Fe[CN5]NO]
- C6H16AlNaO4
- NaC6H7O6
- C5H8NO4Na
- C6H5Na
- C4H9Na
- NaC5H5
- C15H31COONa
- C17H33COONa
- C18H35O2Na
- C164H256O68S2Na2